html,
body {
    margin: 0;
    padding: 0;
}

body {
    padding: 15px;
    background-color: #f2f3f5;
}

thead>tr>th {
    text-align: center !important;
    font-weight: bold !important;
}

tbody>tr>th {
    text-align: center !important;
}

.layui-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#form_addLab,
#form_editLab {
    padding-top: 20px;
    padding-right: 30px;
}